Vehicle-heater.



G. S. JOHNSTON.

VEHICLE HEATER.

APPLICATION FILED JAN.31, 1910.

2 SHEETS-SHEET 1.

Patented Sept. 13, 1910.

G. S. JOHNSTON.

VEHICLE HEATER. APPLICATION FILED JAN. 31, 1910.

Patented Sept. 13, 1910.

2 SHEETS-SHEET 2.

GEORGE S. JOHNSTON, OF ST. LOUIS, MISSOURI.

VEHICLE-HEATER.

Specification of Letters Patent. Patented Sept. 13, 1910.

Application filed January 31, 1910. Serial No. 541,040.

To all whom it may concern:

Be it known that I, Gnonon S. JOHNSTON, a citizen of the United States, residing at St. Louis, Missouri, have invented a certain new and useful Improvement in Vehicle- Heaters, of which the following is a full, clear, and exact descri tion, such as will enable others skilled in t e art to which it ap pertains to make and use the same- This invention relates to heaters such as are used in vehicles.

()ne object of my invention is to provide means for utilizing the exhaust pipe of an engine to heat a compartment of the vehicle which the engine propels, or to heat a radiating device arranged in a compartment of the vehicle.

Another object is to provide a vehicleheatin device of simple construction which is so esigned that a current of hot air is supplied to a compartment of the vehicle or to a heat-radiating device arranged in said compartment.

Another object is to provide a vehicle heater that costs nothin to operate, and which is so designed that it is not apt to get out of order, and still another object is to provide a vehicle heater that can be manufactured at low cost and applied easily to diflerent kinds of vehicles.

Other objects and desirable features of my invention will be hereinafter pomted out.

Fi re 1 of the drawings is a side elevationa view of my improved heater arranged in operative position on a vehicle; Fi 2 is an end view of the parts shown in ig. 1; Fig. 3 is a top plan view; Figs. 4 and 5 are vertical sectional views taken on th lines 44 and 5-5, respectively, of Fig. Fig. 6 is a side elevational view of an adjustable heater;- Fig. 7 .is an end view of same partly in vertical section; Fig. 8 is a vertical sectional View of a slightly modified form of my invention; Fig. 9 is a cross sectional view talcen on the line 9-9 of Fig. 8; Fi 10 is a top plan view ofa diflerent form 0 radiating device from that shown in Fig. 1; and Figs. 11 and 12 are vertical sectional views taken on the lines 1'1--'-11 and 1212 of Fig. 10.

Broadly.stated, my invention consists in means for causing a current of air to travel adjacent to the exhaust pipe of a vehicle en gine and then to pass into a compartment of the vehicle or into contact with a heat-radiating device arran ed in the compartment.

The means that% prefer to use for causing a current of air to travel adjacent to the exhaust pipe consists of a conduit through which the exhaust ipe extends, said conduit being mounted on t e vehicle in such a manner that a current of air travels through same when the vehicle is in motion. One end of said conduit communicates with a compartment of the vehicle or with a heat-radiating device arranged in said compartment so that the heated air can ass directl into the compartment or into said heat-radiating device and thus warm the occupants of the compartment.

Referring to Fig. 1 of the drawings which illustrates one form of my heater, A designates a conduit having a horizontally disposed portion through which the exhaust glpe 1 of a vehicle engine passes, and a ownwardly extending portion that carries afunnel 2 that is arranged in such a manner that a current of air will enter same and travel through the conduit in the direction indicated by the arrow :1; in Fig. 1 when the vehicle is in motion. The conduit A is preferably arranged under the floor 3 of the vehicle, and the rear end of said conduit communicates with a flue 4 which projects upwardly through the floor of a compartment B of the vehicle, as shown in Figs. 1 and 2. Various forms of heat-radiating devices can be arranged in the compartment B in communication with the flue 4, or, if desired, the heated air can pass directly from the flue 4 into the compartment B. .In the form of my invention illustrated in Figs. 1 and 2, a tubular-shaped radiating device 5 is arranged in the compartment B adjacent the floor thereof so that it will serve as a footwarmer for the occupants of the compartment. Both ends of the device 5 are closed, and said device is rovided with a flange 6 .that telescopes in e of'the flue 4, as shown in Fig. 2, the cross sectional area of said flue 4 being preferably the same as the cross sectional area of the conduit A so as to provide a passageway of uniform area for the heated air. Exhaust flues 7 are arranged adjacent the ends of the radiating device 5 so as to permitthe air to escape therefrom and thus provide a continuous circulation of air through the oopduit A and the radiating de- 45 13 can beinserted in either end of same and vice 5. The'exha-ust flues 7 project downwardly through the floor of the compartmen-t B so as to prevent the heated air from passing directly into the compartment B when the device 5 isused'merely as a footwarmer. It is sometimes desirable to have the heated. air pass directly into the com- ,partment Band I have therefore provided the radiatingdevice 5 with a cover or door a '8 that can be raised, as shown in- Fig. 1, so

' as to permit the heated air to pass into the compartment B instead of circulating through the device 5 and escaplng throug the exhaust flues 7 thereof, a piece of wire easily gauze or screen cloth 3 being preferably arranged over the opening which the door 8 closes so as toprevent dust and dirt from entering the compartment B. Each of the exhaust flues 7' preferably consists of a ermanent section that is'connected to the oor.

- tively, when the-heat-radiating device 5 is not arranged in operative position.

If desired, the various parts of the heater can be made adjustable, as shown in Figsro and 7, so that the heater can be a plied easil to difierent kinds of vehicles. or examp e,the horizontal portion of the conduit A can consist of two telescoping sections 11 and 11 that are clam ed together by means ofan adjustable" ban 12, and the laterally projecting portion of said conduit which carries the vertical flue 4, can also consist of two telescop ng sections 13 and 13that are clampedtogetherby a band 14 or other suitable device.-. The outer section 13 is open at bothends so that the mner section thus enable the conduit A to be arranged on either the leftor right-hand side of the vehicle, said section 13, of course, being provided -witha removable cap 15 that forms a closure for one end of same. The vertical flue 4 consists of telescoping sections 16 and 16 that are-clamped together by a device 17 and the downwardly pro'ecting ortion of the conduit-A which carries the nnel 2, is also formed of telescoping sections '18 and 18' that are clamped togethevby a device 19.

A heater. of the construction illustrated in Figs. 6 and 7 can be applied to various kinds of vehicles for the parts of the heater are so constructed that they can b'e-adjusted to accommodate the exhaust pi e and other stationary arts of the vehice or the propel I ling mec anism for same. 63

Figs. 8 and 9 illustrate 'a heater that mbodies practically the same features as the heater shown in Figs. l to 5, inclusive, ex-

cept that the horizontal portion of the conhicle in which the compartmentto be heated is located quite near the front of the vehicle.

Instead of using a cylindrical shaped heat radiating device of the construction previously referred to, I can use a flat hollow radiating device 21 that'covers the main portion'of the floor of the compartment B of the vehicle, as shown in Figs. 10,11 and 12. The flue 4 communicateswiththe front end of said device, and said device is rovided with exhaust flues 7. of substantially the same construction as those ipreviously referred to. Partitions 22 are arranged 1H- side of the device 21 so asjtofcausethe air to circulate rearwardly and then forwardly through the device 21, as indicated by the dotted arrows shown in Fig. 10, and, if desired, a register 23 or other suitable member can be arranged inthe top .wall ofthe device 21 so as to permit the heated air to escape directly into the compartment B.

A vehicle heater of the construction above described can be operated without cost owing to the fact that the heat-generating means consists of theexhaust pipe thatleads from .the engine which propels the vehicle. The current of airv which travels adjacent said exhaust: pipe becomes heated't'o a high degree and thus keeps the compartment B, of the vehicle comfortable 'even in. severe weather, The heater is of such simple-construction that it can beymanufactured at-a low cost and it is not apt to get out of order, and when the various parts of the heater are made adjustable, asshown in Figs. 6 and 7, the heater can be applied practically to-any kind of a vehiole thatis propelled byan engine. In warm or mild weather theheatradiating device that is arranged inside of the compartment can be removed bodily and without necessitating the removal of the conduit A and the exhaust flues which are located underneath the floor {of the vehicle.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is: i

A vehicle 'heater comprising a hollow heat-radiating device arranged in a compartment of the vehicle and provided with exhaust flues that communicate with the at- .mosphere, a conduit arranged under the floor of the vehicle and communicating with said device, the front end of said conduit In testimony whereof'I hereunto afiix my being open so that air can travel through signature in the presence of two witnesses, 10 same, an engine exhaust pipe projecting this twenty-eighth day of January 1910. into Said conduit f0! heating the all S travels throlig'h= same, and means for permit-.

tin the heated air to pass from saidheat- Witnesses: ra lating device into the compartment of WELLS L. CHURCH, the vehicle in which it is arranged. GEORGE BAKnvvnm, 

